South Point 400

Denny Hamlin delivered one of the most clutch performances of his career, surging from a fifth-place restart to pass teammate Chase Briscoe with four laps remaining and hold off Kyle Larson by 1.533 seconds to win the South Point 400 at Las Vegas Motor Speedway. The victory -- his series-best sixth of 2025 and 60th of his Cup career, tying Kevin Harvick on the all-time wins list -- punched his ticket as the first driver into the Championship 4 at Phoenix Raceway.

Larson was the class of the field for most of the afternoon, leading a race-high 129 of 267 laps in his No. 5 Chevrolet, but could not hold off Hamlin's charge in the closing laps. Hamlin restarted fifth following a caution involving Ty Gibbs and methodically picked off cars, passing Larson with five laps to go and then clearing Briscoe a lap later. The No. 11 Toyota was untouchable on the long run, and Hamlin's late-race speed on worn tires proved to be the difference.

Christopher Bell finished third to keep his championship hopes alive, while Briscoe faded to fourth after leading in the closing stages. The result sent shockwaves through the Round of 8 standings: William Byron was involved in a restart wreck and dropped to 15 points below the cutoff line, with Chase Elliott (minus-23), Joey Logano (minus-24), and Ryan Blaney (minus-31) all facing must-perform situations in the final two races before the Championship 4 was set.